Abstract
We review two indirect imaging techniques that are now being used to form spatially-resolved images of accretion disks in mass-transfer binaries, mainly the cataclysmic variable stars. The eclipse mapping method reconstructs the continuum brightness distribution on the surface of a disk from the shape of the light curve during eclipses of the disk by the secondary star. Doppler tomography uses emission line velocity profiles observed over the full range of binary phases to recover the line emissivity distribution in a 2-dimensional velocity space. The doppler tomogram may be interpreted directly in velocity space or transformed to a spatial image of the disk with the assumption of a Keplerian flow. We use the maximum entropy method with default level steering to adjust the disk images.
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